Connecting structure of excavator bucket and movable arm

Abstract

The utility model relates to a connecting structure for a bucket and a movable arm of an excavator. The connecting structure comprises a bucket main body, a movable arm main body and a connecting assembly, the bucket body and the movable arm body are detachably connected through a connecting assembly, and two side lugs are welded to the side, close to the movable arm body, of the bucket body. And the connecting assembly comprises connecting shafts transversely penetrating through the interiors of the two side lugs, the right ends of the two connecting shafts are provided with the same connecting plate, the connecting plate is attached to the right side of the right side lug, and an annular groove is formed in the outer side of each connecting shaft. According to the connecting structure for the bucket and the movable arm of the excavator, through the design of the connecting assembly, particularly the combination of the connecting shaft of a U-shaped structure and the connecting plate and the cooperation of the locking plate and the annular groove, the connecting and disassembling process between the bucket body and the movable arm body is greatly simplified, and during disassembling, only a locking piece needs to be screwed off, and the locking plate needs to be taken out; and the connecting shaft can be easily pulled out, so that the mounting convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of excavator technology, specifically to a connection structure between the excavator bucket and the boom. Background Technology

[0002] As the components that perform specific tasks, the actuators of an excavator are subject to wear and tear due to the harsh working environment. They are considered consumable parts and need to be replaced regularly. In order to facilitate the replacement of actuators, the connection structure between the actuators and the excavator's boom must not only be structurally stable but also easy to disassemble and install.

[0003] Currently, the common method for connecting the bucket and boom is to use two pins for fixing. While this method ensures stability and reliability between the bucket and boom to a certain extent, it introduces considerable operational difficulties during disassembly.

[0004] Specifically, since both pins are located inside the bucket and boom, during disassembly, the operator needs to remove them one by one from their positions. This process requires not only high professional skills and experience from the operator, but also a lot of time and effort, which greatly affects the efficiency of the disassembly operation. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a connection structure between the excavator bucket and the boom, solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connection structure between an excavator bucket and a boom, comprising a bucket body, a boom body, and a connection assembly;

[0007] The bucket body and the boom body are detachably connected by a connecting assembly, and two ears are welded on the side of the bucket body near the boom body;

[0008] The connecting assembly includes a connecting shaft that extends laterally through the interior of the two side ears. The right ends of the two connecting shafts are fitted with the same connecting plate, which fits against the right side of the right side ear. An annular groove is formed on the outer side of the connecting shaft.

[0009] The two connecting shafts are provided with the same locking plate on their outer sides. Both ends of the locking plate are bent in opposite directions to form bent portions, and the two bent portions are respectively embedded in the interior of the two annular grooves.

[0010] Furthermore, a through hole adapted to the connecting shaft is provided inside the side ear.

[0011] Furthermore, the boom body is hinged to the two connecting shafts via a hinge shaft.

[0012] Furthermore, a locking element is threaded through the inside of the locking plate, with one end connected to the left-side side lug.

[0013] Furthermore, the two connecting shafts and the connecting plate combine to form a U-shape.

[0014] Furthermore, the locking plate is attached to the left side of the left ear.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The connection structure between the excavator bucket and boom, through the design of the connecting components, especially the combination of the U-shaped connecting shaft and connecting plate, and the cooperation between the locking plate and the annular groove, greatly simplifies the connection and disassembly process between the bucket body and the boom body. This design allows for easy removal of the connecting shaft during disassembly simply by unscrewing the locking parts and taking out the locking plate, thus increasing the convenience of installation.

[0017] 2. The connection structure between the excavator bucket and boom features a tight fit between the annular groove on the connecting shaft and the bent portion on the locking plate, ensuring the stability of the connection structure. Simultaneously, the threaded connection between the locking element and the left-side lug further enhances the connection's robustness, preventing the connecting shaft from shifting left or right after installation, thus improving the overall stability and safety of the structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the connecting component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the disassembled structure of the connecting component of this utility model.

[0021] In the diagram: 1. Bucket body; 2. Boom body; 3. Connecting assembly; 301. Connecting shaft; 302. Connecting plate; 303. Annular groove; 304. Locking plate; 305. Bending part; 306. Locking element; 4. Side lug. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 The connection structure between the excavator bucket and the boom in this embodiment is used to increase the convenience of connecting and disassembling the bucket and the boom;

[0024] Specifically, it includes a bucket body 1, a boom body 2, and a connecting assembly 3; the bucket body 1 and the boom body 2 are detachably connected by the connecting assembly 3, and two ears 4 are welded on the side of the bucket body 1 near the boom body 2.

[0025] In detail, the connecting component 3 includes a connecting shaft 301 that runs horizontally through the inside of both ear 4. The right end of the two connecting shafts 301 is fitted with the same connecting plate 302. The connecting plate 302 fits against the right side of the right ear 4. An annular groove 303 is opened on the outer side of the connecting shaft 301.

[0026] The two connecting shafts 301 are provided with the same locking plate 304 on their outer sides. Both the upper and lower ends of the locking plate 304 are bent in opposite directions to form a bent part 305. The two bent parts 305 are respectively embedded in the interior of the two annular grooves 303.

[0027] In actual use, the two connecting shafts 301 on the connecting plate 302 pass through the boom body 2 and are inserted into the two side ears 4. Then, the bent part 305 on the locking plate 304 is respectively embedded into the two annular grooves 303. By installing the locking plate 304, the position of the connecting shafts 301 is locked, and the connection between the bucket body 1 and the boom body 2 is completed.

[0028] Furthermore, to ensure the stability of the locking plate 304 installed on the outside of the two connecting shafts 301, a locking member 306 is threaded through the inside of the locking plate 304, with one end connected to the left side lug 4.

[0029] In practical use, after the two bent portions 305 on the locking plate 304 are respectively embedded into the two annular grooves 303, the locking member 306 is rotated to make the locking member 306 threadedly connected to the left side ear 4. At the same time, the locking member 306 is tightly fitted with the left side ear 4, and the two bent portions 305 are stably embedded on the outside of the connecting shaft 301, effectively limiting the left and right movement of the connecting shaft 301 and preventing the connecting shaft 301 from moving left and right after installation.

[0030] Furthermore, a through hole adapted to the connecting shaft 301 is provided inside the side ear 4, and the boom body 2 is hinged to the two connecting shafts 301 through the hinge shaft.

[0031] In actual setup, the through hole inside the side ear 4 is adapted to the connecting shaft 301, ensuring the stability and accuracy of the connection, making the fit between the connected parts tighter, and reducing friction and wear caused by mismatch.

[0032] Furthermore, the two connecting shafts 301 and the connecting plate 302 combine to form a U-shape, and the locking plate 304 is attached to the left side of the left side ear 4.

[0033] In actual setup, the U-shaped structure and locking plate 304 design make the connection part easier to install and disassemble. When disassembling, unscrew the locking piece 306 on the locking plate 304, and then remove the locking plate 304 from the outside of the two connecting shafts 301. At this time, the two connecting shafts 301 can be pulled out from the inside of the two side ears 4 at the same time, which increases the convenience of installation and disassembly between the bucket body 1 and the boom body 2.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection structure between an excavator bucket and boom, characterized in that: It includes a bucket body (1), a boom body (2), and a connecting assembly (3); The bucket body (1) and the boom body (2) are detachably connected by a connecting assembly (3), and two ears (4) are welded on the side of the bucket body (1) near the boom body (2); The connecting component (3) includes a connecting shaft (301) that runs horizontally through the inside of the two side ears (4). The right ends of the two connecting shafts (301) are fitted with the same connecting plate (302). The connecting plate (302) fits against the right side of the right side ear (4). An annular groove (303) is opened on the outer side of the connecting shaft (301). The two connecting shafts (301) are provided with the same locking plate (304) on their outer sides. Both ends of the locking plate (304) are bent in opposite directions to form bent portions (305). The two bent portions (305) are respectively embedded in the interior of the two annular grooves (303).

2. The connection structure between the excavator bucket and the boom according to claim 1, characterized in that: A through hole adapted to the connecting shaft (301) is provided inside the side ear (4).

3. The connection structure between the excavator bucket and the boom according to claim 1, characterized in that: The boom body (2) is hinged to the two connecting shafts (301) via a hinge shaft.

4. The connection structure between the excavator bucket and the boom according to claim 1, characterized in that: A locking element (306) is threaded to the left side ear (4) at one end through the interior of the locking plate (304).

5. The connection structure between the excavator bucket and the boom according to claim 1, characterized in that: The two connecting shafts (301) and the connecting plate (302) are combined to form a U-shape.

6. The connection structure between the excavator bucket and the boom according to claim 1, characterized in that: The locking plate (304) is attached to the left side of the left side ear (4).

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